..., the bottom angles and the length of the bottom of the triangular ARs on the scour volume and the equilibrium scour depth are investigated. The results show that for the ARs with the same heights, the scour depth increases with the increasing bottom angles. For the ARs with the same bottom angles, the scour...

... and maximum scour volume are investigated. The results indicate that the scour depth and scour volume decrease with the increasing opening number. Moreover, the empirical equations of the effect of the opening number of the AR on the equilibrium scour depth and maximum scour volume are proposed based...